Water/oil repellent composition, method for its production and article
a technology of composition and water/oil repellent, applied in the direction of liquid repellent fibres, coatings, textiles and papermaking, etc., can solve the problems of high environmental impact, resin film bonded or coated is not easily separated, and the decomposition product is likely to accumulate, so as to achieve excellent design, favorable water/oil repellency and washing durability, and low environmental impact
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example 1
[0325]Into a glass beaker, 97.8 g of C6FMA, 15.6 g of STA, 6.7 g of D-BI, 66.7 g of CHMA, 2.2 g of HEMA, 2.2 g of nDOSH, 68.9 g of PEO-20, 20.0 g of P-204, 20.0 g of TMAC, 66.7 g of DPG and 332.0 g of water were introduced, heated at 60° C. for 30 minutes and mixed by means of a homomixer (Biomixer manufactured by NIHONSEIKI KAISHA LTD.) to obtain a mixed liquid.
[0326]The obtained mixed liquid was treated at 40 MPa by means of a high pressure emulsifying machine (Mini-Lab manufactured by APV Rannie) while maintaining the temperature at 60° C. to obtain an emulsified liquid. The obtained emulsified liquid was put into a stainless steel reactor and cooled to a temperature of at most 40° C. 17.8 g of VA-061A was added, and the vapor phase was substituted by nitrogen, 33.4 g of VCM was introduced, and a polymerization reaction was carried out at 60° C. for 15 hours with stirring, to obtain an emulsion of a polymer. The proportions of structural units based on the respective monomers and...
examples 2 to 5
[0329]An emulsion of a polymer and a test cloth were obtained in the same manner as in Example 1 except that the charged amounts of the respective raw materials were as identified in Table 2. The proportions of structural units based on the respective monomers and the proportions of the media are shown in Table 3. The results of evaluation of the test cloth are shown in Table 4. In Example 3, a water / oil repellent composition was obtained without addition of the blocked isocyanate crosslinking agent, ammonium chloride and 2,4,7,9-tetramethyl-5-decyne-4,7-diol ethylene oxide adduct.
examples 6 to 11
[0330]An emulsion of a polymer was obtained in the same manner as in Example 1 except that the charged amounts of the respective raw materials were as identified in Table 2. A water / oil repellent composition was prepared and a test cloth were obtained in the same manner as in Example 1 except that the obtained polymer was used and that MEIKANATE TP-10 manufactured by Meisei Chemical Works as a blocked isocyanate crosslinking agent was added so that its concentration became 1.0 mass %, an ammonium chloride 10 mass % aqueous solution was added so that its concentration became 5.0 mass % and 2,4,7,9-tetramethyl-5-decyne-4,7-diol ethylene oxide adduct (ethylene oxide 1.3 mol adduct, HLB: 4) was added so that its concentration became 1.0 mass %. The proportions of structural units based on the respective monomers and the proportions of the media are shown in Table 3. The results of evaluation of the test cloth are shown in Table 4.
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